Effects of Pyometra on Some Oxidative Stress Parameters, Inflammatory Mediators and Neutrophil Segmentation in Bitches

Abstract

Pyometra is characterized by uterine bacterial infection with the accumulation of pus in the uterus often initiates systemic inflammation in the body and may lead to multiple organ dysfunction syndrome (MODS). The main objectives of this study is to evaluate C-reactive protein (CRP), tumour necrosis factor-alpha (TNF-alpha), interleukin-6 (IL-6), superoxide dismutase (SOD), catalase (CAT), and thiobarbituric acid-reactive substances (TBARS) in bitches with pyometra and control bitches to explore the possible variety between the groups to detect the morbidity of the disease and contribution of these parameters in the condition of MODS. All bitches underwent ovariohysterectomy (OVH) and blood sampling was performed just before and after 15 days of the surgery. TNF-alpha, CRP, and IL-6 levels were significantly higher in pyometra group before the OVH (P<0.05, P<0.001, P<0.001, respectively), and CRP and IL-6 levels were significantly high after 15 days of OVH (P<0.001, P<0.05, respectively). Two-segmented neutrophils were significantly lower in pyometra group before (P<0.05) and after OVH (P<0.01). It is revealed that with this study, CRP and IL-6 could be used for inflammation detection when leucocyte number was normal in operated bitches with pyometra. Oxidative stress was not apparent in bitches with pyometra. Also, platelet (PLT) level and neutrophil segmentation index (NSI) might be good indicators to identify the chronic phase and the severity of the disease and risk of disseminated intravascular coagulation (DIC) in bitches with pyometra.